Fossil Mollusks From the John Day Basin in Oregon 



Epiphragmophora antecedens Stearns. Hanna, op. cit. (Mentioned 

 as in the collection of the University of Kansas.) Mentioned herein 

 as being in the University of Oregon collection. 



Epiphragmopkore dubiosa Stearns. Science, n. s. Vol. 15, p. 153, 1902. 

 (Original description.) (In the University of California Collection.) 

 Stearns, Univ. of Calif. Publ. Geol. Vol. 5, p. 69, figs. 3-4, 1906. 

 (Original description repeated and figures provided.) Hanna. op. cit. 

 (Mentioned as being in the University of Kansas Collection.) Men- 

 tioned herein as being in the University of Oregon Collection. 



Epiphragmophora marginicola (Conrad). 



Helix (Zonites) marginicola Conrad Am. Jour. Conch, Vol. 4, p. 

 315, pi. 13, fig. 9, 1870-71. (Bridge Creek, Oregon, Condon Collection. 

 White, 3rd Ann. Rep. U. S. Geol. Surv. p. 453, pi. 32, fig. 34, 1880-81. 



Epiphragmophora marginicola Conrad. Mentioned herein as being 

 in the University of Oregon Collection. 



Gastrodonta imperforata Hanna, op. cit. 



(Original description.) Mentioned herein as being in the University 

 of Oregon Collection. 



Helicina oregona n. sp. Described herein. 

 Lymnaea stearnsi Hannibal. 



Limnaea maxima Stearns, Science, n. s. Vol. 15, p. 154, 1902. 

 Stearns, Univ. of Calif. Publ. Geol. Vol. 5, p. 70, fig. 1, 1906. 



Lymnaea stearnsi Hannibal. In Baker, Lymnaeidae of N. and 

 Mid. America, p. 102, pi. 17, fig. 11, 1911. (New name for L. maxima 

 Stearns, a name used in varietal sense by Collin, Ann. Soc. Mai. Belg. 

 7, p. 94, 1872.) Hannibal, Proc. Mai. Soc. Lon. 10, p. 143, 1912. 

 (Mascall Miocene). 



Oreohelix lecontei Stearns. Science, n. s. Vol. 15, p. 154, 1902. Stearns, 

 Univ. of Calif. Publ. Geol. Vol. 5, p. 68, fig. 2, 1906. Mentioned 

 herein as being in the University of Oregon Collection. 



Polygyra dalli (Stearns.) 



Helix (Monodon) dalli, Stearns, (in White) U. S. Geol. Surv. Bull. 

 18, p. 14, pi. 3, figs. 4-6, 1885. (In a later publication Stearns says 

 the word Monodon was an error for Mesodon.) 



Polygyra dalli Stearns, Proc. Wash. Acad. Sci. Vol. 2, pi. 35, figs. 

 4-6, 1900. (Same figures reproduced as in White, cited above. 

 Stearns, Science, n. s. Vol. 15, p. 153, 1902. Mentioned as being 

 in the University of California Collection.) Stearns, Univ. of Calif. 

 Publ. Geol. Vol. 5, No. 3, p. 67, 1906. Hanna, op. cit. (Mentioned 

 as being in the University of Kansas Collection.) Mentioned herein 

 as being in the University of Oregon Collection. 



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